With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, blanketing the skies in haze and lowering air quality across roughly a dozen states from Wisconsin ...

"Unprecedented" wildfires closing in on the capital of Canada's Northwest Territories prompted citywide evacuations by land and sky Thursday, officials said. Officials instructed residents of the ...

With wildfires burning in North America, it's important to know if you are enveloped in toxic smoke. The smoke is dangerous because it contains a mixture of hazardous gases and solid particles smaller ...

B.C., Alberta, Saskatchewan, Manitoba, Ontario and Quebec have places that are forecast to get "more intense" northern lights ...